Broualan, a small village in the Breton department of Ille-et-Vilaine, is generally considered a place of Atlantic fresh air. Even on warm spring days, the proximity to the ocean often ensures pleasant temperatures. But at the end of May 2026, the weather in Brittany followed completely different rules.
“Last night, I was extremely hot, it was 28 degrees,” reports a resident. This sentence at first seems like a memory of a holiday day in the Mediterranean. In reality, it comes from a region that many associate more with windbreakers than with tropical nights.
It is precisely the nights that are currently attracting attention.
While high daytime temperatures appear spectacular, abnormally warm nights are considered particularly remarkable by meteorologists. The reason is obvious: when temperatures hardly drop after sunset, the body lacks the necessary cooling. Sleep becomes more difficult, homes warm up, and the burden on elderly or health-vulnerable people increases significantly.
In Broualan and other localities in Brittany, nighttime minimums have been recorded these days, usually known rather in midsummer. Even in Dinard, nearby, the nighttime minimum exceeded 22 degrees, clearly surpassing previous records for the month of May. For many residents, the night felt more like late July than late May.
This exceptional heat is not limited to Brittany. In many regions of France, local temperature records have been broken in a few days. Meteorological experts speak of an exceptionally early and lasting heatwave. The fact that such high nighttime values are observed already in May highlights the uniqueness of the current weather situation.
The inhabitants of Broualan, who have lived here for decades, notice a remarkable change. In the past, mild summer evenings were pleasant and rarely oppressive. Today, residents say that bedrooms hardly cool down after midnight anymore. The heat lingers like a heavy blanket over the houses.
These are still occasional record-breaking events. Nevertheless, they bear witness to the extent to which meteorological extremes are now felt even in regions long considered relatively cool and balanced. Brittany, once synonymous with fresh sea air, is currently experiencing nights that instead recall the southern coasts.
Author: C.H.